Home / 25,878.20-35,683.92-19,896.68

Finding the Fourth Proportional to 25,878.20, 35,683.92 and 19,896.68

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Solution

The fourth proportional to 25,878.20, 35,683.92 and 19,896.68 is: 27,435.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,878.20 : 35,683.92 = 19,896.68 : x
  2. Step 2: Convert to fraction form
    25,878.20/35,683.92 = 19,896.68/x
  3. Step 3: Cross multiply
    25,878.20x = 35,683.92 × 19,896.68
  4. Step 4: Simplify right side
    25,878.20x = 709,991,537.39
  5. Step 5: Solve for x
    x = 709,991,537.39/25,878.20
  6. Step 6: Final answer
    x = 27,435.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.